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Abstract:

According to one embodiment, a television receiver includes: a display
device; a casing; a substrate; a supporting portion; a first engaging
portion; and a second engaging portion. The display device includes a
display screen and a surface located opposite the display screen. The
casing includes a wall located opposite the display screen. The substrate
is located between the display device and the wall. The supporting
portion supports the substrate, and is fixed to the wall in a state in
which the supporting portion is in contact with the surface or in a state
in which the supporting portion is capable of being in contact with the
surface if the wall is moved toward the display device side. The first
engaging portion is provided to the wall. The second engaging portion is
provided to the supporting portion, and engages with the first engaging
portion in a direction along the surface.

Claims:

1. A television receiver comprising: a display device comprising a
display screen and a surface located opposite to the display screen; a
casing comprising a wall located opposite to the display screen with
respect to the display device; a substrate located between the display
device and the wall; a supporting portion configured to support the
substrate, and fixed to the wall in a state in which the supporting
portion is in contact with the surface or in a state in which the
supporting portion is capable of being in contact with the surface if the
wall is moved toward the display device side; a first engaging portion
provided to the wall; and a second engaging portion provided to the
supporting portion, and configured to engage with the first engaging
portion in a direction along the surface.

2. The television receiver of claim 1, further comprising a guide portion
provided to at least one of the wall and the supporting portion, and
configured to guide at least one of the first engaging portion and the
second engaging portion to a position where the at least one of the first
engaging portion and the second engaging portion is engaged with other
one of the first engaging portion and the second engaging portion.

3. The television receiver of claim 1, wherein the supporting portion is
configured to support the substrate such that the substrate can move in
the direction along the surface.

4. The television receiver of claim 1, further comprising: a joint
configured to engage the wall with the supporting portion; a protrusion
provided to the supporting portion; a fixing portion provided to the
protrusion and configured to fix the joint thereto, wherein the second
engaging portion is provided to at least a portion of the protrusion.

5. The television receiver of claim 1, wherein one of the first engaging
portion and the second engaging portion comprises a plate-like portion
configured to engage the one of the first engaging portion and the second
engaging portion with other one of the first engaging portion and the
second engaging portion.

6. The television receiver of claim 1, further comprising: a third
engaging portion provided to the wall; and a fourth engaging portion
provided to the substrate, and configured to engage with the third
engaging portion in the direction along the surface.

7. The television receiver of claim 6, further comprising: a component
provided to the substrate, wherein the fourth engaging portion is located
closer to the component than the second engaging portion.

8. The television receiver of claim 6, further comprising: a component
arranged on the substrate, wherein the fourth engaging portion comprises
two fourth engaging portion, and the fourth engaging portions are
provided so as to sandwich the component therebetween.

9. The television receiver of claim 1, wherein the supporting portion
comprises at least two supporting portions, and the at least two
supporting portions are provided so as to support two corners of the
substrate diagonally arranged with respect to each other.

10. The television receiver of claim 1, further comprising a protrusion
protruding toward the surface without coming into contact with the
casing, and provided to the substrate in a state in which the protrusion
is in contact with the surface or in a state in which the protrusion is
capable of being in contact with the surface if the wall is moved toward
the display device side.

11. An electronic device comprising: a display device comprising a
display screen and a surface located opposite to the display screen; a
casing comprising a wall located opposite to the display screen with
respect to the display device; a substrate located between the display
device and the wall; a supporting portion configured to support the
substrate, and fixed to the wall in a state in which the supporting
portion is in contact with the surface or in a state in which the
supporting portion is capable of being in contact with the surface if the
wall is moved toward the display device side; a first engaging portion
provided to the wall; and a second engaging portion provided to the
supporting portion, and configured to engage with the first engaging
portion in a direction along the surface.

Description:

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application is based upon and claims the benefit of priority
from Japanese Patent Application No. 2011-153209, filed Jul. 11, 2011,
the entire contents of which are incorporated herein by reference.

FIELD

[0002] Embodiments described herein relate generally to a television
receiver and an electronic device.

BACKGROUND

[0003] There have been known television receivers as electronic devices
each having a substrate that is fixed to the back surface of a display
device inside the casing of the television receiver.

[0004] In the electronic devices of this type, when a fixing portion for
fixing the substrate is provided, and if the size or the installation
position of the substrate is changed, it is necessary to change the
position of the fixing portion along with a change in the size or the
installation position of the substrate. Therefore, it is sometimes
necessary to change the specifications of the display device.

BRIEF DESCRIPTION OF THE DRAWINGS

[0005] A general architecture that implements the various features of the
invention will now be described with reference to the drawings. The
drawings and the associated descriptions are provided to illustrate
embodiments of the invention and not to limit the scope of the invention.

[0006]FIG. 1 is an exemplary perspective view of a front surface side of
a television receiver according to an embodiment;

[0007]FIG. 2 is an exemplary perspective view of a back surface side of
the television receiver in the embodiment;

[0008]FIG. 3 is an exemplary front view of an interior of a casing of the
television receiver in the embodiment;

[0009]FIG. 4 is an exemplary cross-sectional view of the television
receiver taken along a line IV-IV in FIG. 3, in the embodiment;

[0010]FIG. 5 is an exemplary exploded perspective view of a substrate and
supporting portions of the television receiver in the embodiment;

[0011]FIG. 6 is an exemplary perspective view of the supporting portion
of the television receiver in the embodiment;

[0012] FIG. 7 is an exemplary exploded perspective view of a first member,
a display device, the supporting portions, and the substrate of the
television receiver in the embodiment;

[0013]FIG. 8 is an exemplary perspective view of the first member, the
display device, the supporting portions, and the substrate of the
television receiver in the embodiment;

[0014]FIG. 9 is an exemplary exploded perspective view of a second
member, the supporting portions, and the substrate of the television
receiver in the embodiment;

[0015] FIG. 10 is an exemplary perspective view of the second member, the
supporting portions, and the substrate of the television receiver in the
embodiment;

[0016] FIG. 11 is an exemplary exploded cross-sectional view of the second
member, the supporting portions, and the substrate of the television
receiver taken along the line IV-IV of FIG. 3, in the embodiment;

[0017]FIG. 12 is an exemplary perspective view of a modification of a
first engaging portion and a second engaging portion of the television
receiver in the embodiment;

[0018]FIG. 13 is an exemplary perspective view of another modification of
the first engaging portion and the second engaging portion of the
television receiver in the embodiment; and

[0019]FIG. 14 is an exemplary front view of an electronic device in the
embodiment.

DETAILED DESCRIPTION

[0020] In general, according to one embodiment, a television receiver
comprises: a display device; a casing; a substrate; a supporting portion;
a first engaging portion; and a second engaging portion. The display
device comprises a display screen and a surface located opposite to the
display screen. The casing comprises a wall located opposite to the
display screen with respect to the display device. The substrate is
located between the display device and the wall. The supporting portion
is configured to support the substrate, and is fixed to the wall in a
state in which the supporting portion is in contact with the surface or
in a state in which the supporting portion is capable of being in contact
with the surface if the wall is moved toward the display device side. The
first engaging portion is provided to the wall. The second engaging
portion is provided to the supporting portion, and is configured to
engage with the first engaging portion in a direction along the surface.

[0021] In the drawings, directions (X direction, Y direction, and Z
direction) are indicated for convenience. The X direction is a long-side
direction of a display screen 6a when viewed from front. The Y direction
is a short-side direction of the display screen 6a when viewed from
front. The Z direction is a front-back direction (a depth direction,
i.e., a thickness direction of a casing 2) of the display screen 6a when
viewed from front. The X direction, the Y direction, and the Z direction
are perpendicular to one another.

[0022] In the following embodiments, an example will be explained in which
an electronic device is configured as a television receiver. However, the
electronic device in the embodiments is not limited thereto. The
electronic device in the embodiments may be configured as various
electronic devices, such as personal computers, smartphones, smartbooks,
portable phones, personal digital assistants (PDAs), video display
devices, or television phones.

[0023] A television receiver 1 as an example of the electronic device in
the embodiment comprises, as illustrated in FIGS. 1 and 2, a supporting
portion (a support, a base, or a stand) 11 and the casing 2. The
supporting portion 11 is placed on a placement portion (not illustrated)
such as a desk, a shelf, or a rack, and supports the casing 2. The
supporting portion 11 may support the casing 2 fixedly or movably
(rotatably or slidably). The way to move the supporting portion 11
relative to the casing 2 may be, for example, tilt, swivel, or pivot.

[0024] As illustrated in FIGS. 1 and 2, the casing 2 is formed in a
quadrilateral shape (in the embodiment, for example, in a rectangular
shape) when viewed from front (and from back). The casing 2 also has a
rectangular solid structure that is thin and flat in the front-back
direction. The casing 2 comprises: a front surface (a front, a surface, a
first surface, or a first surface member) 2a; and a back surface (a rear,
a surface, a second surface, or a second surface member) 2b that is on
the opposite side of the front surface 2a. The front surface 2a and the
back surface 2b are approximately parallel to each other. As illustrated
in FIGS. 1 and 2, the casing 2 comprises four ends (sides or edges) 2c to
2f and four corners (protrusions, curved portions, or end portions) 2g to
2j. The ends 2c and 2e are examples of long sides. The ends 2d and 2f are
examples of short sides.

[0025] The casing 2 also comprises: a wall (a first wall, a first portion,
a plate, a frame, an anterior wall, a front wall, or a top wall) 2k
comprising the front surface 2a; and a wall (a second wall, a second
portion, a plate, a posterior wall, a back wall, or a bottom wall) 2m
comprising the back surface 2b. The walls 2k and 2m have quadrilateral
shapes (in the embodiment, for example, rectangular shapes). The casing 2
also comprises four walls (third walls, third portions, plates, side
walls, end walls, stand walls, or connecting portions) 2n comprising side
surfaces (surfaces, peripheral surfaces, or third surfaces) 2p connecting
the wall 2k and the wall 2m. A quadrilateral opening 2r for example is
provided to the wall 2k.

[0026] A protrusion 2s protruding backward, for example, may be provided
to the wall 2m. A concave 2t (see FIG. 4) is formed on the back side of
the protrusion 2s (i.e., the inner side of the casing 2). A plurality of
openings 2u, for example, are arranged on the wall 2m. A connector (a
connecting portion, a terminal portion, a terminal, or a link portion) 12
as a component for example is exposed from at least a portion of the
openings 2u. The connector 12 is provided to a substrate 10 (see, for
example, FIGS. 7 and 8). A cover portion (a cover or a manipulandum) 2v
that is elastically retractable (movable or protrusible) for example is
provided to at least a portion of the openings 2u. The cover member 2v
covers a movable member 14a (see FIGS. 7 and 8) of a switch 14 that is a
component arranged on the substrate 10. The cover member 2v may be
configured as, for example, a cantilever protruding from the edge of the
opening 2u to the inside of the opening. At least a portion of the
openings 2u functions as, for example, a vent. In the embodiment, for
example, a concave 2w that is concave toward the front side is formed on
a portion where the opening 2u with the exposed connector 12 is arranged.
The concave 2w is formed in a quadrilateral shape when viewed from back.
The openings 2u are arranged on a flat bottom portion 2x of the concave
2w.

[0027] The casing 2 may be configured as an assembly of a plurality of
components (divided bodies or members). As illustrated in FIG. 4, for
example, the casing 2 comprises: a first member (a first portion, a
front-side member, or a cover) 2Fr comprising at least the wall 2k; and a
second member (a second portion, a back-side member, a base, or a bottom)
2Rr comprising at least the wall 2m. Walls 2n can be comprised in at
least one of the first member 2Fr and the second member 2Rr (for example,
involved in the second member 2Rr).

[0028] As illustrated in FIG. 4, a display device (a display module, a
display, or a panel) 6 is housed in the casing 2. The display screen 6a
located on the front surface 2a side of the display device 6 is exposed
to the front side (exterior side) of the casing 2 via the opening 2r, so
that a user can view the display screen 6a via the opening 2r from the
front side. The display device 6 is formed in the quadrilateral shape (in
the embodiment, for example, in the rectangular shape) when viewed from
front. The display device 6 also has a rectangular solid structure that
is thin and flat in the front-back direction. The display device 6 may
be, for example, a liquid crystal display (LCD) or an organic
electro-luminescent display (GELD).

[0029] The substrate (a control substrate, a main substrate, or a circuit
substrate) 10 is housed in the back side of the display device 6 (a
posterior side, a rear side, the wall 2m side, or the opposite side of
the display screen 6a). The substrate 10 is provided in parallel to a
surface (back surface) 6b of the display device 6. The substrate 10 is
provided so as to be spaced apart from the walls 2k, 2m, 2n, and the
like, that is, so that a space is formed between the substrate 10 and the
walls 2k, 2m, 2n, and the like. The substrate 10 is fixed to the casing 2
with a joint 13, such as a screw (see FIG. 4). In the embodiment, for
example, a first supporting portion (a first support member, a supporting
portion, or a support member) 15 and a second supporting portion (a
second support member, a supporting portion, or a support member) 16 are
attached to the substrate 10. The first supporting portion 15 is fixed to
the casing 2 with the joint 13. That is, the substrate 10 is fixed to the
casing 2 via the joint 13 and the first supporting portion 15. The
substrate 10 is also supported by the first supporting portion 15 and the
second supporting portion 16 such that a clearance is maintained with
respect to the surface 6b of the display device 6. The first supporting
portion 15 and the second supporting portion 16 are in contact with the
surface 6b of the display device 6 in the assembly state, i.e., in a
state in which the first supporting portion 15, the substrate 10, and the
second supporting portion 16 are attached to the casing 2 via the joint
13, or in a state in which the first supporting portion 15, the substrate
10, and the second supporting portion 16 are made capable of being in
contact with the surface 6b when the wall 2m is moved toward the display
device 6 side. In the embodiment, the first supporting portion 15 is an
example of a supporting portion. The second supporting portion 16 is an
example of a protrusion.

[0030] A plurality of components (electronic components or elements, which
are not illustrated), such as a central processing unit (CPU), are
mounted on the substrate 10 in addition to the connectors 12. The
electronic components comprise a heating element. A cooler mechanism (a
radiator or a heat receiver, which is not illustrated) can be provided to
an electronic component (a heating element) that generates a large amount
of heat. At least a portion of a control circuit (not illustrated) is
constructed of the substrate 10 and the electronic components. The
control circuit may comprise, for example, a video signal processor
circuit, a tuner, a high-definition multimedia interface (HDMI) signal
processor, an audio video (AV) input terminal, a remote controller signal
receiver, a controller, a selector, an on-screen display interface, a
storage (e.g., a read only memory (ROM), a random access memory (RAM), or
a hard disk drive (HDD)), or au audio signal processor circuit. The
control circuit controls output of video (moving pictures or still
pictures) on the display screen 6a of the display device 6, output of
audio via a speaker (not illustrated), or light emission of a light
emitting diode (LED) (not illustrated). The display device 6, the
speaker, and the LED are examples of an output module.

[0031] An assembling method of the television receiver 1 as the electronic
device in the embodiment will be explained below with reference to FIGS.
5 to 11.

[0032] As illustrated in FIG. 5, in the embodiment, a substrate assembly
(a sub assembly or a substrate structure) 17 comprises the substrate 10,
the first supporting portions 15, the second supporting portions 16, and
a conductive component 23. In the embodiment, for example, the first
supporting portions 15 are attached to two diagonally arranged corners
10c among the four corners 10c of the quadrilateral substrate 10, and the
second supporting portions 16 are mounted on other two diagonally
arranged corners 10c. The conductive component 23 is mounted on the
substrate 10 together with the second supporting portion 16 such that the
conductive component 23 is sandwiched between a portion (a protrusion
16b) of the second supporting portion 16 and the substrate 10. The
corners 10c of the substrate 10 are inserted into openings 15b (see FIG.
6) arranged on side surfaces 15a of the first supporting portions 15.
When the corners 10c are fully inserted into the openings 15b, a surface
10a of the substrate 10 is supported by edges (bottom edges) 15c of the
openings 15b and a surface 10b of the substrate 10 is supported by
surfaces 15e of walls 15d of the first supporting portions 15.
Furthermore, ends (sides or edges) 10d of the substrate 10 are supported
by edges (side edges) 15f of the openings 15b. Projections (protrusions)
15g protruding in a direction crossing the surfaces 10a and 10b of the
substrate 10 (e.g., in a perpendicular direction) are arranged on the
surfaces 15e of the walls 15d. The projections 15g are to be inserted
into openings (concaves) 10e arranged on the corners 10c of the substrate
10 when the substrate 10 and the first supporting portions 15 are
assembled. Here, a clearance (not illustrated), for example, is provided
between the projections 15g and the openings 10e in the direction along
the surfaces 10a and 10b of the substrate 10. Therefore, the substrate 10
and the first supporting portions 15 can move relatively with respect to
each other within the clearance in the direction along the surfaces 10a
and 10b of the substrate 10 when the substrate and the first supporting
portions are assembled. That is, the projections 15g and the openings 10e
(or the edges) are examples of engaging portions (positioning portions)
which engages the substrate 10 with the first supporting portions 15 in
the direction along the surfaces 10a and 10b of the substrate 10 while
allowance for certain displacement of the substrate 10 and the first
supporting portions 15 is maintained. In the embodiment, the openings 10e
are formed as through holes for example. However, the openings 10e can at
least be engaged with at least a portion of the first supporting portions
15. In this regard, for example, the openings may be formed as notches or
holes with bottoms (concaves with bottoms). It is also possible to
provide the projections (protrusions) on the substrate 10 and provide the
openings (concaves) on the first supporting portions 15.

[0033] In the embodiment, each of the first supporting portions 15 has the
following structure, for example. That is, as illustrated in FIGS. 5 and
6, the first supporting portion 15 comprises: a surface 15h that comes
into contact with the surface 6b of the display device 6; and a wall (a
peripheral wall or a side wall) 15i protruding in a direction crossing
the surface 15h (the surfaces 10a, 10b, and 6b). On the first supporting
portion 15, a protrusion 15j is formed by the wall 15i and the wall 15d,
and a concave (a space) 15k is formed by being surrounded by the wall 15i
and the wall 15d (a top wall or an upper wall). The opening 15b is
provided to the wall 15i. The first supporting portion 15 comprises a
wall 15m extending from the protrusion 15j in a direction along the
surface 15h (the surfaces 10a, 10b, and 6b). The wall 15m constitutes a
portion of the surface 15h. That is, the surface 15h in the embodiment is
larger than a surface that does not have the wall 15m by the amount
corresponding to the wall 15m. The surface 15h can be used as a site
where a buffer member (a buffer, a cushion member, or a cushion, which is
not illustrated) is interposed with respect to the surface 6b of the
display device 6. For example, the buffer member can be attached to the
surface 6b. The first supporting portion 15 comprises a protrusion 15n.
The protrusion 15n extends in a direction crossing the surface 15h (the
surfaces 10a, 10b, and 6b). A female screw hole 15p is provided to the
protrusion 15n. The joint 13, such as a screw, is fixed to the female
screw hole 15p. That is, the protrusion 15n is an example of a fixing
portion for fixing the joint 13. The first supporting portion 15 is made
of, for example, synthetic resin material.

[0034] In the embodiment, each of the second supporting portions 16
comprises, for example, a stick portion 16a and a flange portion 16b. The
flange portion 16b protrudes in a direction (e.g., a perpendicular
direction) crossing the direction along which the stick portion 16a
extends, from the middle of the stick portion 16a in the longitudinal
direction. In the embodiment, one end of the stick portion 16a in the
longitudinal direction is inserted into the opening 10e of the substrate
10 from the surface 10a side, and the flange portion 16b and other end
16c of the stick portion 16a are protruded on the surface 10a. The other
end 16c is an example of a contact portion that comes into contact with
the surface 6b of the display device 6. The second supporting portion 16
is made of, for example, synthetic resin material. The conductive
component 23 is made of, for example, conductive material, such as metal
material, and comprises a plurality of terminals 23a that come into
contact with the surface 6b of the display device 6. The ground of the
display device 6 and the ground of the substrate 10 are connected to each
other via the conductive component 23. The terminals 23a have
specifications that allow the terminals to be easily bent.

[0035] In the embodiment, as illustrated in FIGS. 7 and 8, the substrate
assembly 17 comprising the substrate 10, the first supporting portions
15, the second supporting portions 16, and the conductive component 23 is
mounted on the surface 6b of the display device 6. As illustrated in FIG.
7, in the embodiment, portions for fixing the substrate 10, the first
supporting portions 15, and the second supporting portions 16 of the
substrate assembly 17 are not provided on the surface 6b of the display
device 6. Therefore, for example, even when the specification (the size
or the form) of the substrate 10 or the mounting position of the
substrate 10 is changed, or even when a different substrate (not
illustrated) is associated with the display device 6, it is possible to
suppress a change in the specifications of the display device 6, and more
preferably, it is possible to eliminate the change in the specifications
of the display device 6. In other words, it is possible to increase the
design flexibility of the substrate 10 or the substrate assembly 17 with
respect to the display device 6 that has specific specifications.
Furthermore, in the embodiment, as illustrated in FIGS. 7 and 8, after
the substrate assembly 17 is mounted on the surface 6b of the display
device 6, the substrate 10 and the display device 6 can be electrically
connected to each other with a cable (e.g., a flexible printed wiring
board or a flexible flat cable, which is not illustrated). In the state
in FIG. 7, for example, the display device 6 can be fixed to the first
member 2Fr. Alternatively, the position of the display device 6 is set on
the first member 2Fr in the state in FIG. 7, and thereafter the display
device 6 is fixed to the first member 2Fr in the subsequent process.

[0036] As illustrated in FIGS. 9 to 11, in the embodiment, the second
member 2Rr of the casing 2 is mounted on the sub assembly illustrated in
FIG. 8. In FIGS. 9 and 10, only the substrate assembly 17 and the second
member 2Rr are illustrated for convenience. However, in the state
illustrated in FIGS. 9 and 10, the substrate assembly 17 is mounted on
the surface 6b of the display device 6 as illustrated in FIG. 8.

[0037] As illustrated in FIGS. 9 to 11 and 4, in the embodiment, for
example, protrusions 18 corresponding to the protrusions 15n of the first
supporting portions 15 are provided to the second member 2Rr. In the
embodiment, for example, each of the protrusions 18 comprises a plurality
of plate-like portions 18a (in the embodiment, four plate-like portions).
The plate-like portions 18a extend along a direction crossing the surface
6b (e.g., in a perpendicular direction). In the embodiment, the four
plate-like portions 18a are arranged in a cross form when viewed from
front (or from back). In the embodiment, for example, ends (edges or
sides) 18b of the four plate-like portions 18a adjacent (opposite) to the
other plate-like portions 18a form a receiving portion (an opening, a
concave, or an insertion portion) 18c as a portion (a region, a space, or
a position) where the protrusion 15n is inserted (received). When the
second member 2Rr is brought close to the sub assembly illustrated in
FIG. 8 and the state is changed form the state in FIG. 9 to the state in
FIG. 10, the protrusion 15n is inserted into the receiving portion 18c as
illustrated in FIG. 4, and the protrusion 15n (or a side surface (a
peripheral surface) 15r) and the plate-like portion 18a are engaged with
each other in a direction along the surface 6b. Furthermore, an end 15s
of the protrusion 15n and a wall 2y as a part of the wall 2m of the
second member 2Rr are engaged with each other. An opening (e.g., a
through hole) 2z is arranged on the wall 2y. By inserting the joint
(e.g., a screw) 13 through the opening 2z from the back side of the wall
2m and engaging the joint with the female screw hole 15p of the
protrusion 15n, the first supporting portion 15 and the substrate
assembly 17 (the substrate 10) are fixed to each other with the joint 13.
In the embodiment, the plate-like portions 18a (or the ends 18b) are
examples of first engaging portions (positioning members) and the
protrusions 15n are examples of second engaging portions (positioning
members).

[0038] In the embodiment, inclined portions 18d are provided to the
protrusions 18. The inclined portions 18d guide the protrusions 15n
toward the receiving portions 18c when the second member 2Rr is brought
close to the sub assembly illustrated in FIG. 8 and the state is changed
from the state in FIG. 9 to the state in FIG. 10. The inclined portions
18d are examples of guide members. Each of the inclined portions 18d is
inclined in a direction away from the center position of the receiving
portion 18c in the direction along the surface 6b, as the inclined
portion 18d is brought away the wall 2m from the open end portion of the
receiving portion 18c (i.e., is brought close to the surface 6b).
Therefore, if the protrusion 15n and the receiving portion 18c are
displaced in the direction along the surface 6b, the protrusion 15n
approaching the receiving portion 18c along the direction crossing the
surface 6b comes into contact with the inclined portions 18d and moves in
a direction toward the receiving portion 18c along the inclined portions
18d. The guide members can be provided to the protrusions 15n (the first
supporting portions 15). For example, the guide members can be provided
as tapered inclined surfaces on the tips of the protrusions 15n. It is
also possible to provide the guide members on both of the second member
2Rr and the first supporting portions 15.

[0039] In the embodiment, for example, protrusions 20a provided to the
wall 2m of the second member 2Rr are engaged with openings 10f provided
to the substrate 10, in the direction along the surface 6b (the surfaces
10a and 10b). In the embodiment, with the configuration in which the wall
2m and the substrate 10 are engaged with each other, it becomes possible
to, for example, easily align the positions of the wall 2m and the
substrate 10 with high accuracy. In this case, it is preferable that a
clearance between the protrusions 20a and the openings 10f (i.e., the
misalignment allowance between the casing 2 and the substrate 10 in the
direction along the surface 6b) is smaller than a clearance between the
protrusions 15n and the ends 18b of the plate-like portions 18a (i.e.,
the misalignment allowance between the casing 2 and the first supporting
portions 15 in the direction along the surface 6b). Furthermore, in the
embodiment, as illustrated in FIG. 11 for example, the tips of the
protrusions 20a and the openings 10f are located at the opposite
positions when the second member 2Rr and the sub assembly illustrated in
FIG. 8 are brought close to each other and the tips of the protrusions
15n and the tips on the inlet sides of the receiving portions 18c are
engaged with each other. Therefore, in the embodiment, for example, the
protrusions 20a and the openings 10f can be more smoothly engaged with
each other, so that it becomes possible to more smoothly assemble the
television receiver 1. In the embodiment, the protrusions 20a are
examples of third engaging portions, and the openings 10f are examples of
fourth engaging portions. In the embodiment, the openings 10f are formed
as through holes by way of example. However, it is sufficient that the
openings 10f are engaged with at least a portion of the casing 2.
Therefore, for example, the openings can be formed as notches or holes
with bottoms (concaves with bottoms). It is also possible to arrange the
projections (the protrusions) on the substrate 10 and arrange the
openings (the concaves) on the casing 2.

[0040] Furthermore, in the embodiment, for example, the openings 10f as
examples of the fourth engaging portions are located closer to the
switches 14 that are components provided to the substrate 10 than the
protrusions 15n that are examples of the second engaging portions.
Therefore, in the embodiment, for example, it is possible to further
increase the positional accuracy between the components arranged on the
substrate 10 and the wall 2m (e.g., the positional accuracy in the
direction along the surface 6b). Moreover, in the embodiment, for
example, the two openings 10f that are examples of the fourth engaging
portions are arranged so as to sandwich the switches 14 that are
components arranged on the substrate 10. Therefore, in the embodiment, it
is possible to, for example, more increase the positional accuracy
between the components arranged on the substrate 10 and the wall 2m. More
specifically, with the above configuration, it is possible to, for
example, further increase the positional accuracy between the cover
members 2v arranged on the wall 2m and the switches 14 as the components
or the positional accuracy between the openings 10f arranged on the wall
2m and the connectors 12 that are components exposed from the openings
10f.

[0041] As described above, in the embodiment, the television receiver 1 as
the electronic device comprises, for example: the first supporting
portions 15 supporting the substrate 10, and fixed to the wall 2m in a
state in which the first supporting portions 15 are in contact with the
surface 6b or in a state in which the first supporting portions 15 are
made capable of being in contact with the surface 6b when the wall 2m is
moved toward the display device 6 side; the plate-like portions 18a (the
ends 18b) as the first engaging portions arranged on the wall 2m; and the
protrusions 15n as the second engaging portions provided to the first
supporting portions 15 and engaged with the plate-like portions 18a (the
ends 18b) in the direction along the surface 6b. Therefore, in the
embodiment, for example, it is not necessary to fix the substrate 10 to
the display device 6, thereby the display device 6 can be constructed at
lower costs. Furthermore, for example, it is possible to increase the
versatility of the display device 6. Moreover, for example, it is
possible to increase the flexibility of the specifications or the
position of the substrate 10.

[0042] Furthermore, the television receiver 1 in the embodiment further
comprises the inclined portions 18d as the guide members that guide at
least one of the plate-like portions 18a (the ends 18b) as the first
engaging portions and the protrusions 15n as the second engaging portions
(in the embodiment, the protrusions 15n) toward one of the wall 2m and
the first supporting portions 15 (in the embodiment, toward the wall 2m)
so that the plate-like portions 18a and the protrusions 15n are located
at positions where the plate-like portions and the protrusions are
engaged with each other. Therefore, in the embodiment, for example, it is
possible to more smoothly perform the assembly operation of the
television receiver 1.

[0043] Moreover, in the television receiver 1 of the embodiment, each of
the protrusions 15n as the second engaging portions functions as a fixing
portion for fixing a screw that is the joint 13. Therefore, in the
embodiment, for example, the configuration can be more simplified than a
configuration in which the second engaging portion and the fixing portion
are separate from each other.

[0044] Furthermore, in the television receiver 1 of the embodiment, for
example, each of the first engaging portions comprises the plate-like
portions 18a. Therefore, in the embodiment, for example, the first
engaging portions can easily be elastically deformed, so that it becomes
possible to, for example, absorb the shock between the first engaging
portions and the second engaging portions.

[0045] Moreover, in the television receiver 1 of the embodiment, for
example, at least two of the first supporting portions 15 support the
corners 10c that are arranged diagonally opposite to each other on the
substrate 10. Therefore, in the embodiment, for example, it is possible
to more stably support the substrate 10.

[0046] Furthermore, the television receiver 1 of the embodiment comprises:
the second supporting portions 16 as the protrusions protruding toward
the surface 6b without coming into contact with the casing 2, and
provided to the substrate 10 in a state in which the second supporting
portions 16 are in contact with the surface 6b or in a state in which the
second supporting portions 16 are made capable of being in contact with
the surface 6b when the wall 2m is moved toward the display device 6
side. Therefore, in the embodiment, for example, it is possible to more
stably support the substrate 10.

[0047] FIGS. 12 and 13 are perspective views illustrating modifications of
engaging portions 21, 22A, and 22B. The engaging portion 21 can be used
as a replacement for one of the protrusions 15n of the first supporting
portions 15 and the protrusions 18 in the embodiment, and the engaging
portions 22A and 22B can be used as replacements for the other one of the
protrusions 15n and the protrusions 18. The engaging portion 22A
illustrated in FIG. 12 comprises a plurality of (in the example, two)
protrusions 22a. A receiving portion 22b for receiving the engaging
portion 21 is provided between the protrusions 22a. Inclined portions
(inclined surfaces) 22c as guide members are provided to the engaging
portions 22A. Even in this example, the protrusions 22a can suppress
movement of the engaging portion 21 in the direction along the surface
6b. That is, the positions of the first supporting portions 15 and the
wall 2m in the direction along the surface 6b can be determined by the
engaging portion 21 and the engaging portion 22A. The engaging portion
22B illustrated in FIG. 13 comprises one cylindrical protrusion 22a. The
receiving portion 22b for receiving the engaging portion 21 is provided
in the cylinder. The inclined portion (the inclined surface) 22c as a
guide member is provided to the engaging portion 22B. Even in this
example, the protrusion 22a can prevent movement of the engaging portion
21 in the direction along the surface 6b. That is, the positions of the
first supporting portions 15 and the wall 2m in the direction along the
surface 6b can be determined by the engaging portion 21 and the engaging
portion 22B.

[0048] While certain embodiments have been described, these embodiments
have been presented by way of example only, and are not intended to limit
the scope of the inventions. Indeed, the novel embodiments described
herein may be embodied in a variety of other forms; furthermore, various
omissions, substitutions and changes in the form of the embodiments
described herein may be made without departing from the spirit of the
inventions. The accompanying claims and their equivalents are intended to
cover such forms or modifications as would fall within the scope and
spirit of the inventions.